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Demetallization, desulfurization, and decarbonization of petroleum oils by hydrotreatment in a dual bed system prior to cracking

Patent ·
OSTI ID:6483161
A process is described for hydrotreating residual oil fractions in an improved dual bed catalyst system comprising a first large-pore catalyst and a second smallpore catalyst in which at least the second catalyst and preferably both catalysts have a quadrulobal shape. Using cobalt and molybdenum composited on alumina as these catalysts, residua are demetallized, desulfurized, and reduced in carbon residue, whereby hitherto unusable residue can be hydroprocessed.
Assignee:
Mobil Oil Corporation
Patent Number(s):
US 4447314
OSTI ID:
6483161
Country of Publication:
United States
Language:
English